SYDNEY – A fair warning to big brothers of the MMA world: It may be a good idea to steer clear of Steven Siler.

After Silver submitted Micah Miller to earn a spot on recent 14th season of “The Ultimate Fighter,” big bro Cole Miller dropped to featherweight and vowed to avenge the loss. He didn’t.

The preliminary-card bout was part of tonight’s UFC on FX 2 event at Sydney’s Allphones Arena. It aired on FUEL TV prior to the night’s FX-televised main card.

After a heated weigh-in staredown and plenty of trash talk heading into the fight, Siler ultimately spoiled the former lightweight’s 145-pound debut.

Siler scored early with low kicks before catching kicks from Miller and dumping him on the mat. Both fighters then landed some heavy punches from distance and displayed solid chins. Things were evenly matched until Silver briefly wobbled Miller with a quick uppercut and straight right, which he followed with a brief guillotine-choke attempt to win the first round.

Siler continued throwing heavy punches in the second round. Miller bought himself some time with takedown attempts and nice work from the clinch. But on the break, Silver landed three quick jabs and then a volley of combos and body punches. Miller regrouped and landed a barrage of his own. The slugfest continued for the remainder of the round, which Siler again won.

The pace slowed a bit in the third, and Siler’s face showed some wear and tear from the fight. Miller’s jab landed more frequently, and he scored a takedown to land some heavy punches from the top. But a grounded and bloodied Silver survived the round to pick up the win.

All three judges awarded him the unanimous decision via 29-28 scores.

“I expected a war, and I got it for sure,” said Siler, who felt his striking was “sloppy” at times. “He’s tough as hell. He’s a force to be reckoned with at the featherweight division.”

Siler (20-9 MMA, 2-0 UFC), who also defeated MMA’s Sharp brothers earlier in his career, moves to 6-1 in his past seven fights. Miller (18-6 MMA, 7-4 UFC) has dropped two of three.

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